129467812 has 12 divisors (see below), whose sum is σ = 226667980. Its totient is φ = 64705536.

The previous prime is 129467783. The next prime is 129467813. The reversal of 129467812 is 218764921.

It can be written as a sum of positive squares in 2 ways, for example, as 66487716 + 62980096 = 8154^2 + 7936^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (129467813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5764 + ... + 17092.

Almost surely, 2^129467812 is an apocalyptic number.

It is an amenable number.

129467812 is a deficient number, since it is larger than the sum of its proper divisors (97200168).

129467812 is a wasteful number, since it uses less digits than its factorization.

129467812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190 (or 14188 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 129467812 is about 11378.3923293232. The cubic root of 129467812 is about 505.8874855936.

The spelling of 129467812 in words is "one hundred twenty-nine million, four hundred sixty-seven thousand, eight hundred twelve".